US11095A - Feed-water apparatus j - Google Patents

Description

HENRY C. `SERGEANT, OF CINCINNATI, OHIO.

FEED-WATER APPARATUS FOR STEAM-BOILERS.

Specification of Letters Patent No. 11,095, dated June 13, 1854.

To all whom t may concern.'

Be it known that I, HENRY C. SERGEANT, of Cincinnati, in the county of Hamilton and State of Ohio, have invented a new and useful Improvement in Apparatus for Feeding and Regulating the Height of YVater in Steam-Boilers; and I do hereby declare that the following is a full, clear, and

exact description of the same, reference being had to the accompanying drawings, forming part of this speciiication, in whichi l p Figure l, is a vertical section through the center of my improved apparatus. Fig. 2, is a top view of the same.

Similar letters of reference indicate corresponding parts in both figures.

My invention consists in a certain novel arrangement and combination of valves and .a float within a box, which has means of communication with a reservoir of water, and with the steam and water spaces of the boiler, by means of which the boiler is continually supplied with water from the reservoir, and the desired level is maintained.

To enable those skilled in the art to make i and use my invention, I will proceed to describe its construction and operation.

A, is the box, which may be of cast iron or other metal. It is provided at the up per part of one side with a pipe, B, which is intended to communicate with the upper part or steam space of `the boiler, and-at the lower part of the same side with a pipe, C, whichis intended tocommunicate with the boiler below the intended water line, or anywhere near the bottom. At the top of the box, there is a pipe, D, intended to communicate with the water reservoir, which should be placed somewhere above.

The passages leading from the box `to the pipes, B and C, are fitted with puppet valves, E, and F, which are attached to the same rod, G, and which open the passages by 'a downward motion, and close them by an upward motion. The valves are of equal size, and being both exposed to the pressure of the steam,when the pipes, B, C, are open, are perfectly balanced. There is intended to be a cock between each of these pipes and the boiler. The pipe, D, is enlarged just outside the box, A, to form a `valve box, G, to receive a valve, H, and the box descends a little below the pipe, D, to form a cup, I, -to retain a small quantity of water. The

valve, H, closes the pipe, D, by a movement outward from the box, und opens it by an inward movement. The valve box is t'urnshed with a reservoir.

The body or main part of the box, A, contains a iioat, K, consisting of a hollow `metal ball, and this float is attached to one end of a lever, L, of the iirst order, which moves on al fulcrum, a, secured within the box, andis forked at the opposite end to embrace the valve rod, Gr, which is furnished with two collars, M, M, one above,` and the other below the fork, at such distance apart, as to allow the irst considerable play between the collars. The weight of the float must be such that when unsupported by water, it will overbalance1 and raise the valves, E and F, and thereby close the pipes, B, and C.

To describe the operat-ion of the apparal tus, I will first suppose that the cocks in the pipes, B, C, are closed, as they would be 4when the boiler is not in operation, or the steamis not up, and that the water in the boiler is below the desired level. As soon as `there is a sufficient pressure of steam in the boiler above that of the atmosphere, the cock in the pipe, B, may be opened, and then as only the upper valve, E, is exposed to the pressure, it is pressed down, and the steam, entering the chamber, D, closes the valve, H. The cock in the pipe, C, is then opened, and the valves, E, F, are balanced. If the box contains any water, it passes by gravitation through C, till the iloat falls far enough to close the valves, E, F. If it contains none, the valves close at once. The steam in the box then soon condenses, and a vacuum is formed therein, when the valve, H, opens, and water from the reservoir enters. the box. The

several parts are now in the condition` shown in black in Fig. 1, of the drawing., l/Vhen the box has received a sucient quantity of water to lift the float high enough to open the valves, E, F, as shown in red outline in Fig. l, the steam entering the box, closes the valve, H, as shown in red in the aforesaid gure and the water runs by gravitation from the box into the boiler, until the iioat has descended far enough to close the valves, when condensation is repeated and followed by the same resultsas before stated. The condensation is assisted pipe, J, which leads to the v the apparatus be so placed, that When the Water in the box is at the level at Which it is desired in the boiler, the valves, E, F, shall be closed, but when the Water rises, in

l the least degree, above that level, the side valves shall be opened by the float. rlhen if the Water rises in the slightest degree above the proper level in the boiler, these valves are opened by a similar rise in the box, and the box is kept supplied With steam from the boiler, and there is no possibility of condensation taking place and t opening the valve, H, until the Water falls l sufficiently for the float to close the other g valves.

What I claim as my invention, and desire to secure by Letters Patent, is:

l. The combination of the balance valves, E, F, the float, K, and the valve, H, all arranged Within, or applied in any manner, substantially as described, to a box, A, connected as described With the boiler and a reservoir.

2. I claim the cup, I, sunk below the pipe, D, Which supplies the box with Water', or otherwise applied inside of the valveLH,

`for the purpose of receiving and retaining a small quant-ity of Water every time ythe box is charged, for the purpose of facilitating or expediting the condensation oi' the steam after the Water has been discharged from the box.

HENRY C. SERGEANT.

Witnesses:

CHAS. E. SERGEANT, JOSEPH H. SANDERS.

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